/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**---
 description: >
    TypeScript 5.0 manages to make all enums into union enums by creating a unique type for each computed member. 
 module: ES2022
 isCurrent: true
 ---*/


import { Assert } from '../../../suite/assert.js';

enum binary {
  A = 1011 + 'abc',
  B = 110 + 'bcd',
  C = 101 + 'cde'
}

type MyBinary = binary.A | binary.B;

function isMyBinary(c: binary): c is MyBinary {
  return (c === binary.A || c === binary.B);
}

Assert.isTrue(isMyBinary(binary.B));
Assert.isFalse(isMyBinary(binary.C));
